DougL wrote:

I have a Canon iP4300 - works great. I refill the tanks regularly
myself.

So there must be a "rule" that the printer uses to chose which black
to use. What is it?

Doug

I may be totally wrong but is not to do with quality? If you set to
lower quality, hi speed printing it uses the big black tank, but on
low speed high quality it is more likely to use the other. I can't
swear on this but that's how I understand it to work

--
Paul (We won't die of devotion)
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